Блог

Этот XML десериализуется должным образом с веб-сайта и возвращается как объект класса. Например, я могу вызвать balanceResponse.AccountId в моем методе, и он отобразит значение, поэтому я знаю, что он работает. Я использую тот же процесс для других веб-запросов, и у меня не было проблем с привязкой их к сетке данных WPF.

Что я делаю не так в XAML? Он не отображает никаких значений.

Кстати, класс XML был сгенерирован с помощью специальной copy paste в Visual Studio.

XAML:

        <DataGrid x:Name="accountBalanceGrid" SelectionMode="Single" IsReadOnly="True" 
              ItemsSource="{Binding BalanceResponse}" AutoGenerateColumns="True">

              <DataGrid.Columns>
                       <DataGridTextColumn Header="Account ID" Binding="{Binding accountId}" > 
                       </DataGridTextColumn>
              </DataGrid.Columns>

    </DataGrid>
 

Метод:

      private async Task PopulateAccount()
    {
        BalanceResponse balanceResponse = new BalanceResponse();
        balanceResponse = await api.GetAccountBalance();
        accountBalanceGrid.DataContext = balanceResponse;
    }
 

Сбалансировать класс ответа:

     [System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(IsNullable = false)]
public partial class BalanceResponse
{

    private string accountIdField;
    private string accountTypeField;
    private string optionLevelField;
    private string accountDescriptionField;
    private string quoteModeField;
    private string dayTraderStatusField;
    private string accountModeField;
    private BalanceResponseCash cashField;
    private BalanceResponseComputed computedField;
    private BalanceResponseMargin marginField;

    public string accountId
    {
        get {return this.accountIdField;}
        set {this.accountIdField = value;}
    }

    /// <remarks/>
    public string accountType
    {
        get{return this.accountTypeField;}
        set{this.accountTypeField = value;}
    }
    public string optionLevel
    {
        get{return this.optionLevelField;}
        set{this.optionLevelField = value;}
    }
    public string accountDescription
    {
        get{return this.accountDescriptionField;}
        set{this.accountDescriptionField = value;}
    }
    public string quoteMode
    {
        get{return this.quoteModeField;}
        set{this.quoteModeField = value;}
    }
    public string dayTraderStatus
    {
        get{return this.dayTraderStatusField;}
        set{this.dayTraderStatusField = value;}
    }
    public string accountMode
    {
        get{return this.accountModeField;}
        set{this.accountModeField = value;}
    }
    public BalanceResponseCash Cash
    {
        get{return this.cashField;}
        set{this.cashField = value;}
    }
    public BalanceResponseComputed Computed
    {
        get{return this.computedField;}
        set{this.computedField = value;}
    }

    public BalanceResponseMargin Margin
    {
        get{return this.marginField;}
        set{this.marginField = value;}
    }
}

[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class BalanceResponseCash
{
    private decimal fundsForOpenOrdersCashField;
    private decimal moneyMktBalanceField;
    public decimal fundsForOpenOrdersCash
    {
        get{return this.fundsForOpenOrdersCashField;}
        set{this.fundsForOpenOrdersCashField = value;}
    }
    public decimal moneyMktBalance
    {
        get{return this.moneyMktBalanceField;}
        set{this.moneyMktBalanceField = value;}
    }
}

[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class BalanceResponseComputed
{

    private decimal cashAvailableForInvestmentField;
    private decimal netCashField;
    private decimal cashBalanceField;
    private decimal settledCashForInvestmentField;
    private decimal unSettledCashForInvestmentField;
    private decimal fundsWithheldFromPurchasePowerField;
    private decimal fundsWithheldFromWithdrawalField;
    private decimal marginBuyingPowerField;
    private decimal cashBuyingPowerField;
    private decimal dtMarginBuyingPowerField;
    private decimal dtCashBuyingPowerField;
    private decimal shortAdjustBalanceField;
    private decimal regtEquityField;
    private decimal regtEquityPercentField;
    private decimal accountBalanceField;
    public decimal cashAvailableForInvestment
    {
        get{return this.cashAvailableForInvestmentField;}
        set{this.cashAvailableForInvestmentField = value;}
    }
    public decimal netCash
    {
        get{return this.netCashField;}
        set{this.netCashField = value;}
    }
    public decimal cashBalance
    {
        get{return this.cashBalanceField;}
        set{this.cashBalanceField = value;}
    }
    public decimal settledCashForInvestment
    {
        get{return this.settledCashForInvestmentField;}
        set{this.settledCashForInvestmentField = value;}
    }
    public decimal unSettledCashForInvestment
    {
        get{return this.unSettledCashForInvestmentField;}
        set{this.unSettledCashForInvestmentField = value;}
    }
    public decimal fundsWithheldFromPurchasePower
    {
        get{return this.fundsWithheldFromPurchasePowerField;}
        set{this.fundsWithheldFromPurchasePowerField = value;}
    }
    public decimal fundsWithheldFromWithdrawal
    {
        get{return this.fundsWithheldFromWithdrawalField;}
        set{this.fundsWithheldFromWithdrawalField = value;}
    }
    public decimal marginBuyingPower
    {
        get{return this.marginBuyingPowerField;}
        set{this.marginBuyingPowerField = value;}
    }
    public decimal cashBuyingPower
    {
        get{return this.cashBuyingPowerField;}
        set{this.cashBuyingPowerField = value;}
    }
    public decimal dtMarginBuyingPower
    {
        get{return this.dtMarginBuyingPowerField;}
        set{this.dtMarginBuyingPowerField = value;}
    }
    public decimal dtCashBuyingPower
    {
        get{return this.dtCashBuyingPowerField;}
        set{this.dtCashBuyingPowerField = value;}
    }
    public decimal shortAdjustBalance
    {
        get{return this.shortAdjustBalanceField;}
        set{this.shortAdjustBalanceField = value;}
    }
    public decimal regtEquity
    {
        get{return this.regtEquityField;}
        set{this.regtEquityField = value;}
    }
    public decimal regtEquityPercent
    {
        get{return this.regtEquityPercentField;}
        set{this.regtEquityPercentField = value;}
    }
    public decimal accountBalance
    {
        get{return this.accountBalanceField;}
        set{this.accountBalanceField = value;}
    }
}

[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class BalanceResponseMargin
{

    private decimal dtCashOpenOrderReserveField;
    private decimal dtMarginOpenOrderReserveField;
    public decimal dtCashOpenOrderReserve
    {
        get{return this.dtCashOpenOrderReserveField;}
        set{this.dtCashOpenOrderReserveField = value;}
    }
    public decimal dtMarginOpenOrderReserve
    {
        get{return this.dtMarginOpenOrderReserveField;}
        set{this.dtMarginOpenOrderReserveField = value;}
    }
}
 

Пример XML:

 <BalanceResponse>
   <accountId>83564979</accountId>
   <accountType>PDT_ACCOUNT</accountType>
   <optionLevel>LEVEL_4</optionLevel>
   <accountDescription>KRITHH TT</accountDescription>
   <quoteMode>6</quoteMode>
   <dayTraderStatus>PDT_MIN_EQUITY_RES_1XK</dayTraderStatus>
   <accountMode>PDT ACCOUNT</accountMode>
   <Cash>
      <fundsForOpenOrdersCash>0</fundsForOpenOrdersCash>
      <moneyMktBalance>0</moneyMktBalance>
   </Cash>
   <Computed>
      <cashAvailableForInvestment>0</cashAvailableForInvestment>
      <netCash>93921.44</netCash>
      <cashBalance>93921.44</cashBalance>
      <settledCashForInvestment>0</settledCashForInvestment>
      <unSettledCashForInvestment>0</unSettledCashForInvestment>
      <fundsWithheldFromPurchasePower>0</fundsWithheldFromPurchasePower>
      <fundsWithheldFromWithdrawal>0</fundsWithheldFromWithdrawal>
      <marginBuyingPower>0</marginBuyingPower>
      <cashBuyingPower>93921.44</cashBuyingPower>
      <dtMarginBuyingPower>0</dtMarginBuyingPower>
      <dtCashBuyingPower>0</dtCashBuyingPower>
      <shortAdjustBalance>0</shortAdjustBalance>
      <regtEquity>0</regtEquity>
      <regtEquityPercent>0</regtEquityPercent>
      <accountBalance>0</accountBalance>
   </Computed>
   <Margin>
      <dtCashOpenOrderReserve>0</dtCashOpenOrderReserve>
      <dtMarginOpenOrderReserve>0</dtMarginOpenOrderReserve>
   </Margin>
</BalanceResponse>
 

Предполагается ItemsSource , что он должен быть установлен или привязан к IEnumerable . Вы устанавливаете DataContext BalanceResponse объект, который, похоже, не имеет никакого BalanceResponse свойства, к которому вы пытаетесь привязать:

 ItemsSource="{Binding BalanceResponse}"
 

Если нет коллекции или перечислимых ответов, вы должны создать его самостоятельно:

 accountBalanceGrid.ItemsSource = new BalanceResponse[1] { balanceResponse };